Answer:
A. Area is 15cm x 15cm = 225cm is the area of 1 tile.
B. She will need 484 tiles
C. She will need to purchase 14 boxes
Step-by-step explanation:
Answer:
f(-2) = 3
Step-by-step explanation:
f(x) = x² + 3x +5
f(-2)=(-2)² + 3*(-2)+5
= 4 - 6 +5
= 3
Answer:
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Answer:
Step-by-step explanation:
Slope m = 1
Point (1;8)
x1 = 1 and y1 = 8
y - y1 = m(x - x1)
y - 8 = 1(x - 1)
y - 8 = x - 1
y = x - 1 + 8
y = x + 7
Answer:
Step-by-step explanation:
A circle is described by an equation in the following form:
(1)
where:
is the x-coordinate of the centre of the circle
is the y-coordinate of the centre of the circle
r is the radius of the circle
For the circle in this problem, we have:
- The centre is located at (2,-8), so
- The radius is 11, so
Therefore substituting into eq(1) we find the equation of this circle:
So the correct option is option B:
